Restaurant building



FIG. 1 is a front elevational view of a restaurant building showing my new design;

FIG. 2 is a left side elevational view, the right side elevational view being a mirror image thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a restaurant building, as shown and described. 